HttpClient httpClient =  new  HttpClient ();
        Protocol httpsAuth =  new  Protocol (
                "https",
                (ProtocolSocketFactory)  new  AuthSSLProtocolSocketFactory (
                    keystoreUrl, keystorePassword,
                    keystoreUrl, keystorePassword),
                 443 );
        httpClient.getHostConfiguration ().setHost (targetUrl.getHost (),  443 , httpsAuth);

        PostMethod postMethod =  new  PostMethod (targetUrl.toString ());
        postMethod.addParameter ("param", "value");

        httpClient.executeMethod (postMethod);
        postMethod.releaseConnection ();

keytool -import -keystore umc.keystore -alias ca-cert     -file ca.crt
keytool -import -keystore umc.keystore -alias client-cert -file client.crt
keytool -import -keystore umc.keystore -alias client-key  -file client.key
keytool error: java.lang.Exception: Input not an X.509 certificate

java.security.KeyStoreException: No private keys found in keystore!